I built a tool that checks how visible your site is to AI engines like ChatGPT, Perplexity, and Gemini — and the results are eye-opening.
Meta tags, backlinks, Core Web Vitals — the SEO checklist is well-known. But there's a new game in town: Generative Engine Optimization (GEO).
When someone asks ChatGPT "what's the best tool for X?", does your brand show up? When Perplexity answers a question in your niche, does it cite you?
Most sites have no idea.
What GEO actually checks
After building the GEO agent in WebScore, here are the signals that actually matter for AI engine visibility:
llms.txt
AI crawlers look for /llms.txt — a plain-text file that tells LLMs what your site is about and what they're allowed to use. Think robots.txt but for AI. Most sites don't have one.E-E-A-T signals
Experience, Expertise, Authoritativeness, Trustworthiness. AI models are trained to favour sites with clear author attribution, About pages, Contact pages, and organisation schema. Missing any of these? You're invisible.FAQ schema
Structured FAQPage JSON-LD gives AI engines pre-digested Q&A pairs to pull from. It's one of the highest-ROI things you can add.Authority citations
Pages that cite 2+ authoritative sources (Wikipedia, government sites, academic papers) get 27.5% more AI visibility according to research. AI engines use outbound authority links as credibility signals.Wikidata entity
ChatGPT, Gemini, and Perplexity use Wikidata to validate brand facts — founding date, industry, HQ, products. Without a Wikidata entry, AI engines have no structured knowledge graph anchor for your brand.Crawl access
Are GPTBot, ClaudeBot, PerplexityBot, and GoogleOther allowed in your robots.txt? Many sites accidentally block them.
What we found running it on real sites
~60% of sites block at least one major AI crawler unintentionally
~80% have no llms.txt
~70% are missing FAQ schema entirely
Sites with Wikidata entries get cited 3x more often in AI responses
How we measure it
The GEO agent in WebScore runs live checks against your URL and returns:
AI Mention Rate — how often your brand appears in AI responses
Citation Rate — how often AI engines link back to you as a source
Issue list — specific fixes ranked by impact
https://www.webscore.dev/
No signup. Results in ~60 seconds.
Top comments (1)
ngl i've been wondering how perplexity actually scrapes for sources, this makes a lot of sense. curious if structured data still matters as much for geo as it does for traditional seo